Sinclair (NASDAQ:SBGI) shares dipped slightly Friday, on word one of the largest owners of broadcast stations in the U.S. is reportedly looking to sell more than 30% of its footprint. The company has hired Moelis as its investment banker and has identified more than 60 stations in various regions of the U.S. that it would be willing to sell, said the people, who asked not to be named because the discussions are private. Sinclair owns or operates 185 TV stations in 86 markets.The stations are a mix of affiliates including Fox, NBC, ABC, CBS and the CW. If sold together, their average revenue for…